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Choropleth Map with Interactive Filtering

✓ Published0🌍 Public
RRussell Watson
Last edited Jan 6, 2020
Created on Jan 6, 2020

This choropleth map displays world countries colored by income group, with an interactive legend that filters the map when a color swatch is clicked. Hovering over a country reveals its name and value. The map renders geographic boundaries using `d3.geoPath` with a `geoNaturalEarth1` projection, while the legend is built from `scaleOrdinal` and `schemeSpectral`. Clicking a legend item sets a `selectedColorValue`, which adjusts country opacity and highlights matching regions, and also dims the sphere and non-matching legend entries. Country data comes from the world-atlas TopoJSON and TSV files.

AI-generated description

A choropleth map where you can hover over items in the color legend items to interactively filter!

MIT Licensed

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